please send me the answer
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shadowsabers03:
Plz can you ask it in higer points?! Otherwise some users will either spam or won't answer. Also answering it will go in vain. So recommending you to ask it for higher points.
To avoid this, you have to ask such questions at higher points like 30 points, 25 points, 50 points etc. Hope you got it. Thanking you.
Answers
Answered by
10
Formula :
If three terms a, b, c be in AP, we can say
a - b = b - c
Proof :
Given that, a², b², c² are in AP. Then,
a² - b² = b² - c²
(i) Now, a² - b² = b² - c²
or, (a - b) (a + b) = (b - c) (b + c)
or,
or,
or,
or,
which shows that
are in AP.
(ii) Now, a² - b² = b² - c²
or, (a - b) (a + b) = (b - c) (b + c)
or,
or,
or,
or,
or,
or,
or,
which shows that
are in AP.
This completes the proof.
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